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Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

Aquariums are usually reserved for fish, but this aquarium will contain creatures from your child's imagination!

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Help your child learn about animal classification with this fun and delicious activity.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

Using a glass fishbowl, you and your kids can create a low-humidity, open-topped terrarium perfect for easy care, drought-tolerant succulents.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science fair project idea identifies and understands adaptations in birds.

In this experiment, you will evaluate whether or not a diet that is supplemented with "brain-enhancing" foods can help improve memory.

Take a trip to the pet store and then make a scrapbook to help your kindergartener learn the difference between living and non living things!

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Help your preschooler practice observing and experimenting with this exciting activity where they'll get to examine objects below the water's surface!

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.